Office365 Outlook Auto-Complete not working

Copper Contributor

Application: MS Office 365 Apps for Enterprise

OS: Windows 10 Enterprise v 22H2

PROBLEM: Auto-Complete not working for user


1. Went to Address Book. Chose Tools > Options.

2. Selected "Start with Global Address List" at the top. Selected Global Address List under "When opening the address book... at the bottom.


3. Deleted contents of C:\Temp and C:\Users\UserID\AppData\Local\Temp.

4. Went to %LOCALAPPDATA%\Microsoft\Outlook and renamed RoamCache to OldRoamCache.

5. Went to File > Options > Mail and emptied the auto-complete list.

6. Ran scanpst.exe and found no problems.

7. Booted in Safe Mode and tested.

8. Had user email someone to get the name into the Auto-Complete list.

9. Had user try emailing that same person again by typing in the name. It still does not auto complete.

10. Rebooted and tried steps 8 and 9 again. No luck.

Any help is appreciated. Thank you for your time.

1 Reply

Hi @philbert68,

Here are a few additional suggestions you might find helpful:

Please click Mark as Best Response & Like if my post helped you to solve your issue.
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Kindest regards,

Leon Pavesic